On Thu, Feb 06, 2020 at 05:30:01PM -0500, Peter Xu wrote: > On Tue, Jan 21, 2020 at 02:31:57PM -0800, Sean Christopherson wrote: > > Add a KVM selftest to test moving the base gfn of a userspace memory > > region. Although the basic concept of moving memory regions is not x86 > > specific, the assumptions regarding large pages and MMIO shenanigans > > used to verify the correctness make this x86_64 only for the time being. > > > > Signed-off-by: Sean Christopherson <sean.j.christopherson@xxxxxxxxx> > > (I'm a bit curious why write 2 first before 1...) To verify KVM actually relocated the memslot and didn't leave anything in the TLB. If "2" isn't written, KVM could completely botch the MOVE but the guest_code() would still signal pass because it would eventually see the 0-> transitions. > Reviewed-by: Peter Xu <peterx@xxxxxxxxxx> > > -- > Peter Xu >
